Gaya APA
Sofyan, I, F. (2023).
Conversation And Correspondence In Bussiness Engglish (Cet.15).
Jakarta:
Pustaka Tarbiyah Baru.
Gaya MLA
Sofyan, Ir, Fahmi.
"Conversation And Correspondence In Bussiness Engglish".
Cet.15
Jakarta:
Pustaka Tarbiyah Baru,
2023.
Text.